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HydroLock Standard 6 inch fits great in 1-3 gallon containers.
HydroLock S6 offers optimal water distribution and uniformity for all potted plants.
HydroLock S6 comes standard with:
1 6GPH Tornado Mist Sprayer per HydroLock
Available in Slate Grey or Bright White
Actual diameter is 6.5 inches